You, my love, are playing against the German (4,6)
I believe the answer is:
dear reader
'you my' is the definition.
I know nothing about this answer so I can't judge whether this works.
'love are playing against the german' is the wordplay.
'love' becomes 'dear' (synonyms).
'playing' indicates an anagram.
'against' means one lot of letters go next to another.
'the german' becomes 'der' ('the' in German).
'are' with letters rearranged gives 'rea'.
'dear'+'rea'+'der'='DEAR READER'
Can you help me to learn more?
I've seen this clue in the Evening Standard.
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